Control device for the load- dependent connection of a hydraulic

Details Control device for the load- dependent connection of a hydraulic Control device for the load- dependent connection of a hydraulic

1991-06-20

1993-10-26

Look, Edward K.

Motors: expansible chamber type

Plural relatively movable or rigidly interconnected working...

Condition responsive means for modifying working member...

91517, 91518, 60425, 60483, F15B 1100, F16D 3102

Patent

active

052555909

ABSTRACT:
A hydraulic base-load motor (M1) drives a load with the working pressure generated at the motor rising with the load. When the working pressure reaches an upper limit pressure, a hydraulic stand-by motor (M2) is switched on. Since the pressure drops upon switching on the stand-by motor, the control device is designed such that, upon reaching a lower limit pressure, it deactivates the stand-by motor again, the lower limit pressure being less than half the upper limit pressure. This switching hysteresis prevents a repeated switching over of the stand-by motor.

REFERENCES:
patent: 2500627 (1947-07-01), Chinn
patent: 2616259 (1952-11-01), Quintilian
patent: 3707981 (1973-01-01), Sadler et al.
patent: 3768263 (1973-10-01), Olson et al.
patent: 3849985 (1974-11-01), Ratliff et al.
patent: 4015679 (1977-04-01), Klitz
patent: 4140089 (1979-02-01), Kueny et al.
patent: 4142369 (1979-03-01), Mickelson
patent: 4194366 (1980-03-01), Petro
patent: 4276896 (1981-07-01), Hunck et al.
patent: 4306840 (1981-12-01), Fassbender
patent: 4556078 (1985-12-01), Wittren
patent: 4579044 (1986-04-01), Johnson
patent: 5069111 (1991-12-01), Loffler et al.

Affiliated with

Also associated with

Rating

Control device for the load- dependent connection of a hydraulic does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control device for the load- dependent connection of a hydraulic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control device for the load- dependent connection of a hydraulic will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-951657